Let f(x) = x + 7 and g(x) = x − 4. Find f(x) ⋅ g(x).

Question

asked Feb 5, 2020 173k views

1 Answer

Nathan Fox · Answer 1 · 2020-02-11T08:16:10+0000

For this case we have the following functions:

$f (x) = x + 7\\g (x) = x-4$

We must find the product of the functions:

f (x) * g (x) = (x + 7) (x-4)

We apply distributive property:

$f (x) * g (x) = x ^ 2-4x + 7x-28\\f (x) * g (x) = x ^ 2 + 3x-28$

Finally, the product of the functions is:

x ^ 2 + 3x-28

Answer: